It is not uncommon for patients to come in with a worried look on their face and ask for a semen test, either because they feel they have not been pregnant for quite some time or because the embryo has stopped developing and miscarried after the pregnancy. Although it is said that one is born with worries, it is sometimes overkill to blame oneself too much. The story is often more ups and downs, because the test results come out, not perfect good, many people masturbate for the first time in their lives to take sperm, or the number of days is too short only one day apart, or too long days up to more than half a month, and some do not pay attention to most of the ejaculation outside, or some think that only a part of the retention is enough, these are sampling errors, such results can not be used as a reference for diagnosis at all These are sampling errors, and such results are not at all useful for diagnosis. The World Health Organization examination manual clearly requires two examinations at least one week apart before a judgment can be made. Why twice, in fact, it is well explained, two points to determine a day straight. For example, buy stocks to plunge, at least to observe it for a period of time, otherwise time after time to plunge in the halfway point, how much money can go to the bottom ah. If there is a time within the normal range, we certainly prefer to believe that in a good state is possible to maintain at this normal level. The other thing is that the factors of conception and miscarriage are actually unclear at the moment, and it is good to actively adjust, but don’t label yourself. In reality, there are some doctors who make a diagnosis based on a report that may be inaccurate, labeling the patient and using heavy medication, which is very bad. Or was it originally no problem, simply an error.